Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803933 | Refractory brick having an increased insulating value | Loucius Carey, Jr. | 1989-02-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803933 | Refractory brick having an increased insulating value | Loucius Carey, Jr. | 1989-02-14 |